The salary trajectory of a a Project Development Engineer ranges between locations and employers. The salary starts at £0 per year (estimate) and goes up to £0 per year (estimate) for the highest level of seniority.
The estimated average salary for a Project Development Engineer at ExxonMobil is £56,426 per year or £27 per hour, but some professionals have reported earning up to roughly £92,807 per year (90th percentile). The typical pay range is between £44,872 (25th percentile) and £72,417 (75th percentile) annually. This is based on 5 salaries submitted by ExxonMobil Project Development Engineer professionals on Glassdoor, as of Jul 2026.